Portable beverage brewing machine



FIG. 1 is a perspective view of a portable beverage brewing machine showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an exploded perspective view thereof.

The broken lines in the drawings depict portions of the portable beverage brewing machine that form no part of the claimed design. 

CLAIM The ornamental design for a portable beverage brewing machine, as shown and described. 